用相关分析、通经分析和主成份分析方法对近年来育成的一些杂交早稻组合的主要性状分析表明：1．产量和产量性状及产量性状间有较为复杂的相关关系，而以每穗实粒数和株高对产量的直接作用最大；2．生育期对产量的直接作用和其它性状通过该性状的间接作用很小，说明早稻生育期范围内，实现高产是可能的；3．按累积贡献率≥85％，确定了穗平着粒数、结实率、千粒重和穗长四个主成份；4．对提高杂交早稻的育种途径和策略进行了探讨。 The main traits of some early hybrid rice combinations bred in recent years by correlation analysis, through analysis and principal component analysis showed that: 1. Yield and yield traits and yield traits have a more complex correlation between the grain and grain per panicle and plant height on the yield of the direct effect of the largest; The direct effect of the growth period on the yield and the indirect effect of other traits through the trait are very small, which shows that it is possible to achieve high yield within the range of the early rice growth period.3. According to the cumulative contribution rate≥85%, the four main components of spike grain, seed setting rate, 1000-grain weight and spike length were determined.4. Breeding ways and strategies to improve early hybrid rice were discussed.